The Solicitor-General is "looking into" a judge's decision to issue a young rugby player a discharge without conviction for assaulting four people.
Losi Filipo, 18, was last month discharged without conviction for the attack that occurred in central Wellington in October 2015.
He was charged with assaulting Kelsey Odell, 22, her boyfriend Hayden Williams, 22, Greg Morgan, 21, and Olivia Samuels, 22.
Filipo's brother was also faced one charge of assault with intent to injure relating to one of the victims and was convicted, fined and sentenced to supervision. He had prior convictions.
The sentence has caused an outcry from Filipo's victims and other members of the public, who say Filipo should be convicted.